Stack overflow crashes since update to 0.42 about esp-idf-hal HOT 3 CLOSED

Ok, I think I found the root cause.

Although the error message talks about a stack overflow in the main task, it seems to be a stack overflow in one of the threads.
The stack usage seems to have been borderline full before the update and the update seems to have slightly increased stack usage.

I did now increase the thread stacks with the sdkconfig variable CONFIG_PTHREAD_TASK_STACK_SIZE_DEFAULT.
(The main task stack is controlled by CONFIG_ESP_MAIN_TASK_STACK_SIZE)

Now it doesn't crash anymore.

The error message talking about the main task made me search in the wrong direction.

from esp-idf-hal.

since you are using a lot of threads from your description you should think about defining the stack_size when building your threads. You can use https://doc.rust-lang.org/std/thread/struct.Builder.html#method.stack_size to configure your specific thread_size for any given thread you spawn, that is maybe a better approach as to just use a default stack_usage for every thread you are using.

With that said keep #233 in mind while using this

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Hi @Vollbrecht,

thanks a lot for the suggestion.
Indeed, dynamically setting the thread stack size on spawn time is the better solution most of the time.
I think in my case the global configuration might be fine, because I don't actually spawn any small (sub-)threads. I only use a couple of long running main threads.

However, I will check your solution. It looks cleaner. Thanks for the #233 hint. It would certainly have bitten me.

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